As part of my day job I talk to a lot of farmers who are terrified about leaving the EU as the removal of EU subsidies will mean a lot of them will go out of business

Not wishing to backtrack to a previous post but I have just come across this CS. It was headlining in the Western Morning News dated May 19 2017 and brought home by my missus. Can't say I can see anything to be terrified about here.

The headline says...
Farmers win subsidy pledge from Tories.

'The Conservative Party has promised to continue the existing level of farm subsidies until 2022 - two years beyond previous pledges.'

The party manifesto, launched on the same day as the Devon County Show, said:
'We want to provide stability to farmers as we leave the EU and set up new frameworks for supporting food production and good stewardship of the countryside'.

Edit:
Meurig Raymond, President of the National Farmers Union, speaking at the show, said: 'I am delighted with the manifesto commitment to maintain the total level of support for farmers through the next parliament.'